Wet chemical etched CdTe thin film solar cells
- Authors
- Chun, Seungju; Lee, Seunghun; Jung, Younghun; Bae, Jong Seong; Kim, Jihyun; Kim, Donghwan
- Issue Date
- 1월-2013
- Publisher
- ELSEVIER
- Keywords
- CdTe thin film solar cells; X-ray photoelectron spectroscopy (XPS); Low temperature photoluminescence (PL); Nitric-phosphoric (NP) etching; CdCl2 activated heat treatment
- Citation
- CURRENT APPLIED PHYSICS, v.13, no.1, pp.211 - 216
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 13
- Number
- 1
- Start Page
- 211
- End Page
- 216
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/104291
- DOI
- 10.1016/j.cap.2012.07.015
- ISSN
- 1567-1739
- Abstract
- Wet chemical etching process on as-deposited CdTe surface using nitric-phosphoric (NP) acid improved the efficiency of CdS/CdTe solar cells from 10.1% to 13.8%. Nitric-phosphoric (NP) acid solution etched native oxide (TeO2) layer and resolved excess cadmium on CdTe surface. After the heat treatment process activated the CdCl2, CdO layer which was believed to be a diffusion barrier of chlorine did not grow on the etched CdTe surface and new (V-Cd(2-)-2Cl(Te)(1+))(0) complexes was located at E-V + 0.045 eV. New (V-Cd(2-)-2Cl(Te)(1+))(0) complexes acted as a shallow acceptors and induced to improve V-oc and J(sc). The surface of CdTe thin film has been studied using Scanning Electron Microscope (SEM), X-ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and low temperature Photoluminescence (PL). (C) 2012 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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